Emulating 1998-Vintage Mac Compilers
All of the tools I needed could be accessed via MPW. Could I get these to run externally somehow?
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The obvious choice to start with here is Unicorn Engine, which is essentially the CPU emulator from QEMU made into an embeddable library. I’ve used it for a bunch of projects before. They’ve brought Rust bindings into the tree now which is also quite cool!
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Whenever the emulator calls a library function, it loads the function’s index into rtoc (r2) and invokes
sc. Then, my hook looks at r2 to determine which function we should try and simulate.[…]
The CodeWarrior C/C++ compiler (MWCPPC) imports over a hundred library functions, but I didn’t want to just implement every single one right off the bat - I wanted to see results faster than that, so I ran it and implemented things as they came up.
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Having lived through all of this technology 25-35 years ago this was very entertaining, though I would not want to actually ever work with this stuff ever again!
